"Dr. Sergio Miguel Terrazas Porras" <sterraza at campus.cdj.itesm.mx>
in [mg2588] help
writes,
"I have not been able to plot the function x^(1/3) for negative x
Is there a special function for cuberoot?"
Thew package RealOnly (available from MathSource) deals with this
sort of problem.
Allan Hayes
hay at haystack.demon.co.uk